.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.main {
  width: 100%;
  flex: 1;
}

.header {
  padding: 4.5rem 0;
  background: url(/image/banner.png) no-repeat;
  background-size: cover;
  background-position: top;
  color: #eaeaea;
  position: relative;
  overflow: hidden;
}

.header::after {
  content: '';
  position: absolute;
  height: 280px;
  width: 250px;
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0)0, rgba(255, 255, 255, .2)50%, rgba(255, 255, 255, 0)100%);
  background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(255, 255, 255, 0)), color-stop(50%, rgba(255, 255, 255, .2)), color-stop(100%, rgba(255, 255, 255, 0)));
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0)0, rgba(255, 255, 255, .2)50%, rgba(255, 255, 255, 0)100%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0)0, rgba(255, 255, 255, .2)50%, rgba(255, 255, 255, 0)100%);
  transform: skew(-30deg);
  top: 0;
  left: -20%;
  animation: mymove 30s ease-in-out;
  -webkit-animation: mymove 30s ease-in-out;
}

@keyframes mymove {
  0% {
    left: -20%;
  }
  100% {
    left: 100%;
  }
}

@-webkit-keyframes mymove {
  0% {
    left: -20%;
  }
  100% {
    left: 100%;
  }
}

.footer {
  width: 100%;
  height: 4rem;
  border-top: 1px solid #eaeaea;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer img {
  margin-left: 0.5rem;
}

.footer p {
  display: flex;
  justify-content: center;
  align-items: center;
}

.title a {
  color: #0070f3;
  text-decoration: none;
}

.title a:hover, .title a:focus, .title a:active {
  text-decoration: underline;
}

.title {
  margin: 0;
  line-height: 2;
  font-size: 3rem;
  color: #b6c1c5;
}

.title, .description {
  text-align: center;
  color: #b6c1c5;
}

.description {
  line-height: 1.5;
  font-size: 1.5rem;
}

.code {
  background: #fafafa;
  border-radius: 5px;
  padding: 0.75rem;
  font-size: 1.1rem;
  color: #0070f3;
  font-family: Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace;
}

.grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 3rem auto 0;
}

.card {
  height: 14rem;
  margin: 1rem;
  flex-basis: 45%;
  padding: 1.5rem;
  text-align: left;
  color: inherit;
  text-decoration: none;
  border: 1px solid #eaeaea;
  border-radius: 10px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.card:hover, .card:focus, .card:active {
  color: #0070f3;
  border-color: #0070f3;
}

.card h3 {
  margin: 0 0 1rem 0;
  font-size: 1.5rem;
}

.card p {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.5;
}

.logo {
  height: 1em;
}

@media (max-width: 600px) {
  .grid {
    width: 100%;
    flex-direction: column;
  }
}